Headrest surround channel electroacoustical transducing
US7899198B2 · kind B2 · utility
3Cited by
19References
11Claims
0Family size
Inventors
Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio system including a first audio source, including a surround channel signal, coupled to an electroacoustical transducer mounted in the back of a seat of, for example, an automobile, so that the surround channel is radiated from the electroacoustical transducer. In one embodiment, the electroacoustical transducer is oriented to radiate substantially upwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.